Roller-skate



(No Model.)

J. C. CHOPPER. ROLLER SKATE.

No. 332,189. Patented-Dec. 8, 1885.

N. PETERS. PhnloLnhogmpher. Walhmglon. 0.6.

' UNITED STATES PATENT Orrics.

JOSEPH O. CHOPPER, OF CEDAR FALLS, IOWA.

ROLLER-SKATE.

SPECIFICATION forming part of Letters Patent No. 332,189, dated December8, 1885.

Serial No. 163.585. (No model.)

To all whom it may concern.-

Be it known that I, J OSEPH O. OROPPER, a

citizen of the United States, residing at Cedar Falls, in the county ofBlack Hawk and State of Iowa, have invented certain new and usefulImprovements in Roller-Skates; and I do hereby declare that the same arefully described in the following specification, and

illustrated in the accompanying drawings.

' resents a longitudinal vertical section of one of the hangers and aportion of the sole-plate to which it is secured. Fig. 3 represents across-section on the line X X shown in Fig. 2. Fig. 4 represents across-section on the line Z Z, also shown in Fig. 2. Fig. 5 represents aperspective view of one of the metallic sleeve-bearings located in thecenter of eat-h roller. Fig. 6 represents a perspective view of one ofthe roller shafts or pins and Fig. 7 represents a perspective view ofone of the pressure-plates on which the adjustable pressure-screw actsin each of the hangers.

Similar letters refer to similar parts wherever they occur on thedifferent parts of the drawings.

a isthe sole-plate,preferably made of metal, and provided with the usuallaterally-adj ustable clamps, b b, and right-and-left-handedclamp-screws b I), well known in the art; but I wish to state thatI donot confine myself in my improved roller-skate to such metal sole-plateand screw-clamps, as these may be varied without departing from theessence of my invention.

c 0 represent the front and rear hangers, which are connected togetherby means of the longitudinal metal bar 0, cast in one piece with orotherwise secured to said hangers c 0, by which arrangement the properrelative position of one hanger in relation to the other is permanentlymaintained, as well as great strength imparted to said hangers. Theconnecting-bar C also acts as a vibrating spring to impart ease andcomfort to the skater. The

connecting-bar O, as well as the hangers 0 0,are secured to thesole-plate aby means of screws 0 c or rivets, as shown in Figs. 1, 2, 3,and 4. The under side of each hanger c has downwardlyprojecting sidelips c c and semicircular ears 0 c in its ends, as shown in Figs. 2, 3,and 4., by means of which a box or cavity is formed to contain theelastic cushion or spring d, preferably made of india-rubber or otherelastic material, as shown in Figs. 2 and 3. Between the upper side ofthe rubber cushion d and the under side of the hanger is interposed ametal plate, e, having upwardly-projecting pins 0 e on its upper side,as shown in Fig. 7, fitting loosely in corresponding recesses or holesin the hanger, as shown in Fig. 2, so as to serve as a guide for saidplate when the latter is pressed more or less against the elasticcushion d by means of the regulating-screwy, that is screwed through ascrew-threaded perforation in the top of the hanger o, as shown in Fig.2, and has its lower end resting on top of pressureplate e. The upperend, f, of screwfis made square, or ofthe same size and shape as theends of the clamping-screws b b, so that one key only may be needed forsecuring the sole-plate to the foot and to turn the regulating-screwsff. A perforation, a, is made in the sole-plate a above each screw f,through which the key is to be inserted when it is to desired toregulate the pressure on cushions d.

The semicircular ears 0 c in the ends of each hanger c are perforatedfor the reception of the inclined hinge-pin 9, (shown in Fig. 2,) thatalso passes through the rocker h, the upper side of which is flat, asshown in Figs. 2 and 3, and has between its upper flat side and theunder side of the elastic cushion d interposed the metal plate 2',provided with upwardly-projecting side lips z" 2", (shown in Fig. 3,) toprevent the elastic cushion d from spreading sidewise when compressedbetween the hanger and its rocker. Below the semicircular ears 0 0 onthe hanger 0 are made on the front and rear ends of the rocker hsemicircular or concave lips h 71, (shown in Figs. 1, 2, and 4,) adaptedto serve as rests for the semicircular ears 0 c on the hanger 0, when anincreased pressure is made to bear downward on the sole-plate a, andthus relieve the pin g from an undue and excessive strain when the skateis in use. Said semicircular lips h h also serve as stops between therocker and hanger. To permit such vertical yielding motion of the rockerin relation to its hanger, I make the perforations in the said partsthrough which the bolt or pin 9 passes a little larger than the diameterof such pin, as shown in Fig. 2. Ping has in one end a head, 9, asusual. The other end is perforated for the reception of the pin which ismade to rest in a recess, 0, on the outside of one of the ears 0', asshown in Fig. 2, and thus prevent the said pin 9 from turning around itsaxis in the perforated ears 0 c and thereby saving it from unnecessarywear. In one piece with the rocker h is cast the bearing-sleeve it,through which the pin or bolt 70 is inserted, as is usual onroller-skates.

Z Z are the skate-rollers, which are bored out centrally to receive themetal bearingsleeve Z, that is driven firmly into the bored-out centralportion of roller Z, as shown in Fig. 3. Within the bearing-sleeve Z islocated the anti-friction sleeve Z which is free to turn in saidbearing-sleeve and surrounds the pin or spindle is, as shown in Fig. 3.

Z is an annular groove or recess on the exterior of the anti-frictionsleeve Z and Z is a perforation through the said sleeve Z at this place.

Z is a perforation through the skate-roller Z, leading from the insideofsaid roller through a hole in bearing-sleeve Z to the annular groove Zon the metal anti-friction sleeve Z as shown in Fig. 3, by whicharrangement the lubricant can easily be fed to the interior of sleeve Zand spindle k, as shown in Fig. 2, without allowing the lubricant anyaccess to the exterior or outside portion of the said roller, therebypreventing the lower portions of ladies garments from being soiled. Oneend of the pin or bolt is has a head, 70, as usual, to prevent theroller nearest to it from getting off said spindle it. Near the saidhead 70, I make a transverse perforation through the pin or spindle k,

in which is looselyinserted the locking-pin 7c, adapted to rest in arecess, L, on the outside of one of the rollers Z, as shown in Fig. 3,so as to lock one of the rollers Z to said spindle k, while the oppositeroller is made to run loose on said pin or spindle is, causing the skateto run easier, as compared with skates in which both rollers are looseon the pin. If, however, a skater should prefer to have both rollersloose on pin is, its locking-pin k may easily be removed from its recessL on the outside of one of the rollers Z.

Instead of a split pin in the opposite end of spindle is, which isliable to tear and injure ladies dresses, I use an adjustable collar, k(shown in Fig. 3,) which is slipped loosely over the outer end ofspindle is, and secured in place on such spindle on the outside of oneof the rollers Z by means of set-screw k, screwed through such annularring or collar h and having .its inner end pressing against the bottomof a groove, 75, made longitudinally on the spindle is, near its outerend, but not extending wholly to the end of said spindle is, as shown inFig. 5, so as to prevent said collar audits set-screw from getting offfrom the end of spindle k in case the set-screw k should accidentally beloosened a little.

The anti-friction sleeve Z", that surrounds the spindle hand has itsbearing in the metalbearing sleeve Z, that is secured centrally withinroller Z, is a very essential feature in my improved roller-skate, andby its use and construction the skate is run almost noiseless, and withthe least amount of frictional resistance possible. To still more reducethe frictional resistance in the runninggear of the skate, I locatewithin. the bearing-sleeve h, around the pin 70, the loosely-runningantifriction sleeve H, provided with an annular groove, H, andperforation H in a similar manner to those located within the rollersZZ.

H is a perforation through one side of bearin -sleeve h communicatinwith the an.-

nular groove on the anti-friction sleeve H,- through which perforationthelubricantisintroduced.

Having thus fully described the nature, construction, and operation ofmy invention, I wish to secure by Letters Patent and claim 1. In aroller-skate, the combination, with the hanger 0, having the side lips cc and downwardly-projecting ears 0 c hinged by pin 9 to the rocker h, ofthe lower dish-plate, i, with upwardly-projecting side lips 'Z 'Z, theupper plate, 6, having guide-pins e e, fittingin corresponding recessesin v the body of the hanger, and the interposed elastic cushion d,substantially as described.

2. In a roller-skate, the combination, with the hanger havingdownwardlyprojecting side lips c c" and end ears, 0 forming a box orreceptacle for an elastic cushion, d, said ears projecting below thelips c c, of the rocker h, having a plain upper side bearing against thecushion d, and semicircular or curved end lips,h h, adapted to serve asrests for the ears 0 c and the hinge-pin g, passing through ears 0 c androcker h, substantially as described.

3. In a roller-skate, the hanger cand rocker h, hinged together, asdescribed, and having the yielding cushion d interposed between them, incombination with the dish-plate i Z i, upper plate, 6, having guide-pinse e, and the regulating-screw f, as and for the purpose set forth. 7

4. In a roller-skate, the rocker h, combined with the internalloosely-fitted anti-friction bearing-sleeve H, having annular groove Hand perforation H, as and for the purpose set forth.

5. In a roller-skate, the herein-described roller Z and its centralbearing-sleeve, Z, combined with the loosely-fitted anti-friction sleeveZ having annular groove Z and perforation Z as and for the purpose setforth.

In testimony whereof I have affixed mysig nature in presence of twowitnesses.

Witnesses: JOSEPH O. CHOPPER.

ALBAN ANDRI'IN, HENRY OHADBQURN.

